A customer of mine is getting an error on their console. It is A22 033 line loopback error. Equipment number 33 is a single line port. I discovered it to be bad. I replaced the card with a good card but the error still occurs? I did notice that with the good card, dial tone/volume is a bit lower? I moved my extension off of that port onto another port and reprogrammed accordingly. Error still occurring. I changed the the extension type (field c) to both 1=contact monitor and 2=hotline group. Error still occurring. i assume it has to be in the main mother board/back plane? Or is the something I can turn off in system programming to deactivate this automatic line loop back.

I am new to this forum but I have been in the industry since 02/1997. Mainly Avaya, Mitel, Panasonic, and NEC. Glad to be here!